A valuable desk that had belonged to the famous violin maker, Mr. Stradivarius, and later to Napoleon, is stolen by the notorious criminal Arsenio Lupine. What the thief does not know is that inside the valuable piece there is a lottery ticket awarded with 1,000,000 francs. Sherlock Holmes, together with his assistant Watson, is hired by a wealthy baron, who intends to imprison the criminal since innumerable assaults are being carried out in Paris that are increasingly worrying the whole city ...